US3561122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angle of bend reader
Assignee: Pines Engineering Co Inc
•
Filing: 1969-09-02
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Granted: 1971-02-09
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Expires: 1989-09-02
Abstract
Abstract APPARATUS INCLUDING A PROTRACTOR DISC AND A LENS SYSTEM FOR VISUALLY RECORDING ON A SCREEN THE ANGLE OF BEND PRESENT IN A PIECE OF TUBULAR, ROD OR LIKE STOCK.
Inventors
- 👤 George F Beckwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/56; G01B11/00; G01B11/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |